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Histology Exam 1 > Muscle PPT > Flashcards

Muscle PPT Flashcards

1
Q

Where does the epithelial come from?

A

Endoderm, ectoderm and mesoderm

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2
Q

Where does the musculoskeletal come from?

A

Mesoderm

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3
Q

Where does the connective come from?

A

Mesoderm

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4
Q

Where does the nervous come from?

A

Ectoderm

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5
Q

What is conglomerate of cells with similar morphology that serve one or several specific functions within an organism?

A

Tissue

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6
Q

What is the derm origin of muscular tissue?

A

Mesoderm

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7
Q

What is a cytoplasm that contains myofilaments?

A

Sarcoplasm

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8
Q

What are myofilaments made of?

A

Actin and Myosin

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9
Q

What is the result of the sliding of myofilaments?

A

Contraction = movement

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10
Q

What muscle types do voluntary contractions?

A

Skeleton, tongue, and eyes

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11
Q

What muscle type do involuntary activity?

A

Heart, blood vessels, bronchioles, digestive tract

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12
Q

What is the smallest functional component/unit of a muscle skeletal muscle?

A

Sacromere

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13
Q

Myosin= thin or thick?

A

Thick

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14
Q

Myosin= A or I?

A

A

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15
Q

Actin= thick or thin?

A

Thin

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16
Q

Actin= A or I?

A

I?

17
Q

What is needed for myofibers to slide away from each other?

A

Calcium

18
Q

What are myofibers surrounded by?

A

Endomysium

19
Q

What are groups of myofibers that form a bundle surrounded by?

A

Perimysium

20
Q

What are groups of muscle bundles that form a muscle delineated by?

A

Epimysium

21
Q

Myosin in skeletal muscle= thick, making it dark or light?

A

Dark

22
Q

Actin in skeletal muscle= thick, making it dark or light?

A

Light

23
Q

Why is myosin referred to as A?

A

Anisotropic

24
Q

What is the name when light is sent in multiple directions?

A

Anisotropic

25
Q

Why are actin filaments referred to as I?

A

Isotopic

26
Q

What is it called when light is sent in one direction?

A

Isotopic

27
Q

How does troponin help in diagnosing cardiac necrosis?

A

Troponin is released when damage is detected

Histology Exam 1 (25 decks)

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